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Home >> Buick >> 2000 >> Century Custom >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Control System - Self-Diagnostics - 3.8L) >> Diagnostic Tests >> DTC P0601: Control Module Read Only Memory (ROM) >> Circuit Description
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Circuit Description

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PCM uses an Electrically Erasable Programmable Read Only Memory (EEPROM). EEPROM contains program information and calibrations required for engine, transaxle, and powertrain diagnostics operation. If PCM detects an internal program fault (check sum error), DTC will set.

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